Building construction.



0. N. MUELLER.

BUILDING CONSTRUCTION.

APPLIOATION FILED Dnc. 2, 190s. v

' Patented Oct. 12, 1909. z SHEETS-SHEET 1. .1.

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0. N. MUELLER. BUILDING CONSTRUCTION.

v APPLICATION FILED DEG. 2, 190B. 936,342, Patented Oct. 12,1909.

2 SHEETS-SHEET 2.

v l @lttofmmy o therefrom to various UNITED STATES PATENT oEEioE.

OTTO N. lVIU'lELLER,V 0F INDIANAPOLIS, INDIANA, ASSIGNOR OF ONE-HALF TO ANTON" VONNEGUT, OF INDIANAPOLIS7 INDIANA.

BUILDING CONSTRUCTION.

Specification of Letters Patent.

t Application led December 2, 1908. Serial No. 465,685.

To all whom 'it may concern.'

Be it known that I, Q'r'ro N. MUELLER, a citizen ofqthe United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented certain new and useful Improvements in Building Construction, of which thefollowing is a specication.

The object of my invention is to produce certain improvedy details of construction in that type of reinforced concrete buildings illustrated in my previous patent No. 876,480.

The accompanying drawings illustrate my invention. a

Figure 1 is a plan of a corner floor square and adjacent floor squares of the reinforcing skeleton; Fig. 2 a detail on a larger scale of an intermediate side column and adjacent reinforcing members; Fig. 3 a simiv lar view of a middle column and adjacent reinforcing members, being a section on line 3 3 of Fig. 4; Fig. 4 a section on line 4-4 of Fig. 3 Fig. 5a vertical section of a com pleted. structure built upon the skeleton shown in F ig. l, thetsection being taken throu h an intermediate column and adjacent lgoor squares; Fig. 6 a plan of a corner column with the reinforcing members ar-l ranged in a manner different from that shown in Fig. l; Fig. 7 a plan of an intermediate wall column with the licor square reinforcement arranged -in the same manner as that shown in Fig, 6; Fig. 8 a section on line 8 8 of Fig. 7, and Fig.` 9 an elevation on line 5.;9 of Fig. 7.

In .the drawinfrs, 21 indicates angle bars connected by lattice members 22 and 23 into a column structure and 24 indicates light channel or other suitable beams of sufficient weight to connect the columnsinto a light skeleton. The channels 24 may be comparatively li ht in weight and not much more than su cient to serve as reinforcement for4 the sides of the floor squares and may be very considerably lighter than would be `necessary to in themselves sustain the loads to which the completed-.structure would be subjected. As in my above mentioned patent I reinforce the floor squares by means of reinforcing rods 31 which are concentrated at a principal point of support and radiated poi-nts of a floor square. In practice I have. found that it is very essential that some means be provided to v31 are maintain desired spacing of these radiating reinforcing rods whilethe concrete is being placed, because it is necessary for the workmen to step across the reinforcements and they are likely to misplace the various rods. For that reason I secure to the column reinforcements 21, angle plates 25 and 26 between which the reinforcing bars 31 lie. In

practice I find it desirable to rivet the lower f angles- 25' in place and, after placing the rein rcing bars thereover, to bolt the angles 26 1n place and then pass bolts 27 down' Vthrough the parallel arms of the two angles 25 and 26 so that, after the reinforcing bars tightened and the reinforcing bars thus firmly clamped between the angles 25 and 26 and the reinforcing bars 31 thus maintained in their spacing.

In Figs. 1 to 4 inclusive I have shown the reinforcing bars 31 as anchored around one or the other of the column reinforcing mem# properly spaced, bolts 27 may be bers 21. While this is entirely satisfactory in most cases, I have found in practice that such an arrangement is apt to require a considerable thickness of veneering upon the V outer or exposed walls of the structure, as will be apparent from an inspection ofFig. 2 and I therefore have devised the arrange-y ment shown 1n Figs. 6 to 9 inclusive. In this form the upper angle plate 26', or anchor ends o the reinforcing bars 31 passed through such openings 36 and then turned transversely to form a hook` or linger 31 thus anchoring the reinforcing bars to the column reinforcement. The parallel portions of the clamping angles 25 26 are clamped upon the reinforcing bars 3l by means of bolts 27 tion. A

After the skeleton frame o f columns and connecting beams is erected for one or twostories a suitable temporary centering is provided to form a support and receiver for the loose ends of the reinforcing bars 31 and the concrete, and the skeleton is concreted in a usual mannerV as is described in my above mentioned patent.

I claim as my invention: .1. In a reinforced concrete structure, the

plates 352 are perforated at 36, thel as in the other construccombination of metallic column structures,

a reinforced concrete floor comprising reinforcing bars radiating from said column structures across the adjacentfloor squares',

and means for clamping said radiating bars in :in adjusted relative position.

2. ln a reinforced concrete structure, the

combination of metallic column structures, a reinforced concrete floor comprising reinforcing bars radiating from said column structures across the adjacent floor squares, and a pair of clamping plates carried by a column structure respectively over and under a Grou of radiatin reinforcin bars and iiieans for clani ing said plates upon said radiating bars, or the purpose set forth.

3. In a reinforced concrete structure a rethis twentieth day of November', A. l). one

thousand nine hundred and eight. Y

OTTO N. MUELLER. [1.. sl] lVitnesses:

ARTHUR M. Hoon, THOMAS W. MoMEANs. 

